CN110806317A - Data processing method and device based on torque model, rack and storage medium - Google Patents
Data processing method and device based on torque model, rack and storage medium Download PDFInfo
- Publication number
- CN110806317A CN110806317A CN201910706413.4A CN201910706413A CN110806317A CN 110806317 A CN110806317 A CN 110806317A CN 201910706413 A CN201910706413 A CN 201910706413A CN 110806317 A CN110806317 A CN 110806317A
- Authority
- CN
- China
- Prior art keywords
- torque
- steady
- working condition
- state working
- test engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
Abstract
The embodiment of the invention discloses a data processing method and device based on a torque model, a rack and a storage medium. The method comprises the following steps: the method comprises the steps of obtaining measurement data of a test engine under at least one steady-state working condition in a bench test, determining a calculated torque output by a torque model under each steady-state working condition according to a preset torque model, determining a torque of a test vehicle and an information association table of the corresponding working condition according to the calculated torque and an actual torque and combining a preset rule, so that when the test vehicle actually runs, determining running parameters of the engine of the test vehicle under the current required torque according to the information association table. Compared with the prior art, the embodiment of the invention utilizes the measured data of the test engine under different steady-state working conditions, and combines the torque model to obtain the information association table of the torque and the working conditions, thereby providing a basis for the form of a vehicle subsequently provided with the test engine, meeting the driving requirement, avoiding manual execution in the process, realizing the automatic processing of the data and shortening the processing time.
Description
Technical Field
The embodiment of the invention relates to the technical field of data processing, in particular to a data processing method, a data processing device, a rack and a storage medium based on a torque model.
Background
In the engine development process, the engine is usually required to be calibrated in a bench manner to meet the development requirements of the engine performance and the development requirements of the whole vehicle. The rack calibration of the engine comprises torque model calibration, ignition angle calibration and temperature model calibration.
Taking the torque model calibration as an example, the torque model calibration is to make the torque calculated by the torque model and the torque actually output by the engine as close as possible so that the power output characteristic of the engine meets the driving requirement. During the calibration process, the ignition angle and the torque need to be adjusted according to different working condition points, namely, data such as the torque, the ignition angle and the like need to be processed to obtain a correlation table of the torque and the working conditions, and when the vehicle matched with the engine actually runs, relevant parameters of the engine of the vehicle under the current required torque can be determined according to the correlation table so that the vehicle runs under the working conditions corresponding to the current required torque.
The traditional processing mode is that the torque and the corresponding ignition angle are manually adjusted according to the actual output torque of the engine and the corresponding ignition angle, so that the torque calculated by a torque model is matched with the actual output torque of the engine, and finally an association table of the torque and the working condition is obtained.
Disclosure of Invention
The embodiment of the invention provides a data processing method, a data processing device, a rack and a storage medium based on a torque model, which are used for reducing the data processing difficulty in the calibration process of the torque model and shortening the data processing time.
In a first aspect, an embodiment of the present invention provides a data processing method based on a torque model, including:
the method comprises the steps that measurement data of a test engine under at least one steady-state working condition in a bench test are obtained, wherein the measurement data comprise an actual torque output by the test engine and an actual ignition angle corresponding to the actual torque;
determining the calculated torque output by the torque model under each steady-state working condition according to a preset torque model;
and determining an optimal torque of the test engine and an information association table of the corresponding working condition by combining a preset rule according to the calculated torque and the actual torque, so that when a vehicle matched with the test engine actually runs, determining the operating parameters of the test engine under the current required torque according to the information association table.
In a second aspect, an embodiment of the present invention further provides a data processing apparatus based on a torque model, where the apparatus includes:
the system comprises an information acquisition module, a data acquisition module and a data processing module, wherein the information acquisition module is used for acquiring measurement data of a test engine under at least one steady-state working condition in a bench test, and the measurement data comprises an actual torque output by the test engine and an actual ignition angle corresponding to the actual torque;
the calculation torque determining module is used for determining the calculation torque output by the torque model under each steady-state working condition according to a preset torque model;
and the information association table determining module is used for determining the optimal torque of the test engine and the information association table of the corresponding working condition by combining a preset rule according to the calculated torque and the actual torque so as to determine the operating parameters of the test engine under the current required torque according to the information association table when a vehicle matched with the test engine actually runs.
In a third aspect, an embodiment of the present invention further provides a gantry, including:
a rack body;
an engine controller;
the test engine is used for providing measurement data under different steady-state working conditions for the bench test;
a dynamometer for measuring a friction torque of the test engine;
a memory for storing one or more programs;
the one or more programs, when executed by the engine controller, cause the engine controller to implement the torque model-based data processing method according to the first aspect.
In a fourth aspect, the embodiment of the present invention further provides a storage medium, on which a computer program is stored, which when executed by an engine controller, implements the torque model-based data processing method according to the first aspect.
The embodiment of the invention provides a data processing method, a data processing device, a rack and a storage medium based on a torque model, which are used for determining the optimal torque of a test engine and an information association table of corresponding working conditions by acquiring the measurement data of the test engine under at least one steady-state working condition in a rack test, determining the calculated torque output by the torque model under each steady-state working condition according to a preset torque model, and determining the optimal torque of the test engine and the information association table of the corresponding working condition according to the calculated torque and the actual torque and combining a preset rule, so that when a vehicle matched with the test engine actually runs, the running parameters of the test engine under the current required torque are determined according to the information association table. Compared with the prior art, the embodiment of the invention utilizes the measured data of the test engine under different steady-state working conditions, and combines the torque model to obtain the information association table of the torque and the working conditions, thereby providing a basis for the form of a vehicle subsequently provided with the test engine, meeting the driving requirement, avoiding manual execution in the process, realizing the automatic processing of the data and shortening the processing time.
Drawings
FIG. 1 is a flow chart of a data processing method based on a torque model according to an embodiment of the present invention;
FIG. 2 is a flowchart of a data processing method based on a torque model according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of the deviation between the calculated torque and the actual torque when the same steady-state working condition corresponds to different ignition angles under four different VVT combinations according to the second embodiment of the present invention;
fig. 4 is a flowchart illustrating an implementation of a second association table according to a second embodiment of the present invention;
FIG. 5 is a comparison chart of results output by different association tables at the same rotation speed according to the second embodiment of the present invention;
FIG. 6 is a block diagram of a data processing apparatus based on a torque model according to a third embodiment of the present invention;
fig. 7 is a structural diagram of a rack according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
Example one
Fig. 1 is a flowchart of a data processing method based on a torque model according to an embodiment of the present invention, which is applicable to processing data in a calibration process of the torque model, and the method can be executed by a data processing apparatus based on the torque model, which can be implemented in software and/or hardware and can be integrated in a gantry. Specifically, the method comprises the following steps:
and S110, acquiring measurement data of the engine under at least one steady-state working condition in the bench test.
And the measurement data comprises the actual torque output by the test engine and the actual ignition angle corresponding to the actual torque. The bench test refers to a simulated operation test performed before the product leaves a factory, and comprises an engine bench test, and after the test is passed, the engine bench test can be put into use. The test engine was an engine subjected to a bench test. The present embodiment uses the rotation speed, the relative intake air amount, and the ignition angle of the test engine as examples to determine whether the current operating condition is the steady-state operating condition, for example, the rotation speed, the relative intake air amount, and the ignition angle of the test engine are kept unchanged within a set time, and then the test engine is considered to be currently in the steady-state operating condition, where the relative intake air amount is a percentage of the air amount of the current cylinder to the air filling amount in the standard state, for example, the relative intake air amount rl is 50, which represents that the current intake air amount is 50% of the air filling amount of the cylinder in the standard state. The torque is a force for rotating an object, the torque output by the test engine is a torque output by the test engine from a crankshaft end and is used for providing driving force for driving a vehicle matched with the test engine, and under the condition that the angular speed is not changed, the larger the torque is, the larger the driving force output by the test engine to wheels is. The ignition angle is the angle that the crankshaft rotates in the period from the ignition moment to the time when the piston reaches the compression top dead center when the test engine works, the ignition angle is different, the corresponding combustion efficiency is different, and the torque output by the test engine is different.
The relative amount of intake air into the test engine is related to a Variable Valve Timing (VVT) system, which can adjust the overlap time and Timing of the intake and exhaust systems of the engine to control the relative amount of intake air into the engine, i.e., the relative amount of intake air can be controlled by controlling the time that the intake and exhaust valves are open. In practice, the states of the intake and exhaust valves typically include four cases: the four conditions are called four VVT combinations in the embodiment, and the ignition angles corresponding to different VVT combinations are different.
Specifically, the actual torque output by the test engine under the steady-state operating condition and the corresponding actual ignition angle may be measured in a bench test, and the embodiment does not limit the specific obtaining manner. When the vehicle matched with the test engine actually runs, a device for measuring the torque and the like is not arranged on the whole vehicle, the torque output by the test engine cannot be determined, and therefore when the vehicle is required to run under a certain set torque, the running parameters of the test engine cannot be accurately determined. Therefore, in the embodiment, the incidence relation between the torque and the corresponding working condition is determined and stored, so that the working condition corresponding to the current required torque can be determined by searching the incidence relation according to the current required torque when the vehicle actually runs, and the running parameter of the test engine is determined according to the working condition, so that the required torque is output when the test engine runs under the current running parameter, and the driving requirement is met.
And S120, determining the calculated torque output by the torque model under each steady-state working condition according to a preset torque model.
The torque model is a model for calculating the output torque of the test engine, and it can be understood that there is usually a certain deviation between the torque calculated by the torque model and the actual torque output by the test engine when the vehicle actually runs, and in this embodiment, a certain data processing is performed, so that the deviation between the calculated torque output by the torque model and the actual torque output by the test engine meets a set requirement, thereby meeting the driving requirement, wherein the set requirement can be set according to an actual requirement, for example, can be set to [ -5% + 5% ], that is, the deviation between the calculated torque and the actual torque is within ± 5%. The form of the torque model is not limited, and may be, for example, a specific formula, where the formula is related to parameters such as ignition efficiency, air-fuel ratio efficiency, and friction torque corresponding to a steady-state operating condition, and the calculated torque corresponding to a steady-state operating condition may be output by substituting the parameters such as ignition efficiency, air-fuel ratio efficiency, and friction torque corresponding to a certain steady-state operating condition into the formula. Note that each steady state condition corresponds to a calculated torque.
And S130, determining an optimal torque of the test engine and an information association table of a corresponding working condition by combining a preset rule according to the calculated torque and the actual torque, so that when a vehicle matched with the test engine actually runs, determining the operation parameters of the test engine under the current required torque according to the information association table.
The information association table is a data table containing the association relation between the torque and the working condition, when the torque is determined, the working condition corresponding to the torque can be obtained by searching the information association table, and then the running parameter of the test engine corresponding to the working condition is determined, so that when the test engine runs under the current running parameter, the torque required by current running can be output, and the power requirement is met.
Specifically, the preset rule is a method or means adopted for determining the information association table, for example, a deviation between the calculated torque and the actual torque is determined for each steady-state operating condition, then the deviation and a set condition to be met are input into a predetermined solution model, the optimal torque meeting the set condition is output by the solution model, and the embodiment does not limit the specific form of the solution model. The set conditions can be that the deviation is minimum, the optimal torque and the optimal ignition angle respectively meet a certain range, the optimal torque is an ideal torque under a steady-state working condition, and the optimal ignition angle is an ignition angle corresponding to the optimal torque. It should be noted that the optimal torque is not the calculated torque, the torque model includes the optimal torque, and during actual driving, a certain operation needs to be performed on the optimal torque to obtain the calculated torque close to the actual torque.
The embodiment of the invention provides a data processing method based on a torque model, which comprises the steps of obtaining measurement data of a test engine under at least one steady-state working condition in a bench test, determining a calculated torque output by the torque model under each steady-state working condition according to a preset torque model, determining an optimal torque of the test engine and an information association table of a corresponding working condition according to the calculated torque and an actual torque and combining a preset rule, so that when a vehicle matched with the test engine actually runs, determining an operation parameter of the test engine under the current required torque according to the information association table. Compared with the prior art, the embodiment of the invention utilizes the measured data of the test engine under different steady-state working conditions, and combines the torque model to obtain the information association table of the torque and the working conditions, thereby providing a basis for the form of a vehicle subsequently provided with the test engine, meeting the driving requirement, avoiding manual execution in the process, realizing the automatic processing of the data and shortening the processing time.
Example two
Fig. 2 is a flowchart of a data processing method based on a torque model according to a second embodiment of the present invention, which is embodied on the basis of the second embodiment, and specifically, the method includes the following steps:
s210, obtaining measurement data of the engine under at least one steady state working condition in the bench test.
And S220, determining the calculated torque of the test engine under each steady-state working condition according to the calculation formula of the torque model, the optimal torque corresponding to each steady-state working condition of the test engine, the ignition efficiency corresponding to the optimal ignition angle, the air-fuel ratio efficiency and the friction torque.
The ignition efficiency is combustion efficiency corresponding to different ignition angles, and the smaller the ignition angle is, the later the combustion is, the lower the combustion efficiency is, namely, the less energy is used for doing work. The air-fuel ratio efficiency is combustion efficiency corresponding to different air-fuel ratios, theoretically, an optimal air-fuel ratio exists, when the air-fuel ratio is the optimal air-fuel ratio, the combustion efficiency is highest, and the combustion efficiency corresponding to other air-fuel ratios is properly reduced. The ignition efficiency and the air-fuel ratio efficiency may be determined by an engine controller, and the specific determination process embodiment is not limited. The friction torque is the torque that overcomes the test engine motion resistance, pumping losses, and accessory resistance, and can be measured with a dynamometer disposed on the bench.
It is understood that when the rotation speed of the test engine is large and the relative intake air amount is large, in order to prevent the temperature from being excessively high, the fuel injection amount needs to be increased so that the air-fuel ratio is a non-optimum air-fuel ratio, and therefore, the optimum torque in the ideal state needs to be corrected. In this embodiment, the optimal torque is corrected through the torque model, optionally, the torque model is a formula related to the optimal torque, the ignition efficiency corresponding to the optimal ignition angle, the air-fuel ratio efficiency, and the friction torque, and the optimal torque, the ignition efficiency corresponding to the optimal ignition angle, the air-fuel ratio efficiency, and the friction torque corresponding to a certain steady-state working condition are substituted into the formula, so that a result can be output by the formula as the calculated torque under the steady-state working condition. Optionally, the calculation formula of the torque model is as follows:
p(i,j)＝(x(i,j)*y(i,j)*ω(i,j)-β(i,j))*α(i,j)*λ
wherein p (i, j) is a calculated torque of the test engine under the (i, j) th steady-state working condition, x (i, j) is an optimal torque under the (i, j) th steady-state working condition, y (i, j) is an ignition efficiency corresponding to the optimal ignition angle under the (i, j) th steady-state working condition, ω (i, j) is an air-fuel ratio efficiency under the (i, j) th steady-state working condition, β (i, j) is a friction torque under the (i, j) th steady-state working condition, α (i, j) is an engine coefficient under the (i, j) th steady-state working condition, and λ is a weight coefficient between 0 and 1.
Specifically, according to the steady-state working condition and the optimal torque corresponding to the steady-state working condition, a two-dimensional data table can be formed, the transverse direction of the two-dimensional data table represents the relative air inflow, the row number where the relative air inflow is located is represented by i, i is larger than or equal to 2, the longitudinal direction of the two-dimensional data table represents the rotating speed of the test engine, the column number where the rotating speed of the test engine is located is represented by j, j is larger than or equal to 2, different rows represent different relative air inflow, different columns represent different rotating speeds, and the intersection of the row and. Illustratively, if i is 3, j is 5, the relative intake air amount rl represented by i is 15, and the rotation speed of the engine represented by j is 1200r/min, the steady-state operating condition corresponding to the third row and the fifth column is 1200r/min of the test engine, and the relative intake air amount rl is 15.
The engine coefficient is a coefficient determined to ensure that the calculated torque is greater than the actual torque output by the test engine, for example, the maximum actual torque output by the test engine is 240Nm, the maximum optimum torque is 100Nm, the engine coefficient is greater than 2.4, and the specific value can be set according to actual requirements. The weighting coefficients are constants between 0 and 1, the weighting coefficients corresponding to different VVT combinations are different, wherein the weighting coefficients corresponding to the opening of the intake valve and the exhaust valve are larger, and the weighting coefficients are set to enable the calculated torque output by the torque model to be as close to the corresponding actual torque as possible. It should be noted that the optimal torque and the optimal firing angle in the above formula are unknowns to be solved, that is, the firing efficiency is also unknowns, and other parameters are known quantities.
And S230, respectively determining the difference value of the calculated torque and the actual torque under each steady-state working condition.
And calculating the calculated torque under each steady-state working condition by using the formula, and obtaining the difference value between the calculated torque and the actual torque of the test engine under each steady-state working condition by subtracting the calculated torque and the actual torque under each steady-state working condition, thereby providing a basis for determining the subsequent optimal torque and the optimal ignition angle. It should be noted that, when determining the difference between the calculated torque and the actual torque, an optimal torque needs to be preset, and the embodiment does not limit the preset optimal torque, and the value is set only to ensure that the difference can be calculated.
S240, determining the optimal torque corresponding to each steady-state working condition according to each difference value, the steady-state working condition corresponding to each difference value and a preset solving model, and forming a first association table based on each steady-state working condition and the optimal torque corresponding to each steady-state working condition.
The solution model is a model for determining the optimal torque and the ignition efficiency corresponding to the optimal ignition angle, and the embodiment does not limit the form of the solution model, and may be, for example, a solver. For example, the difference between the calculated torque and the actual torque under each steady-state condition, the condition that the difference satisfies, the condition that the optimal torque in the difference satisfies, and the condition that the optimal ignition angle satisfies are output to a solver, so that the optimal torque corresponding to each steady-state condition and the optimal ignition angle corresponding to different VVT combinations under each steady-state condition can be obtained. Specifically, the optimum torque may be determined by:
and aiming at each steady-state working condition, taking the steady-state working condition, the difference value corresponding to the steady-state working condition, the first condition met by the difference value, the second condition met by the optimal torque under the steady-state working condition and the third condition met by the optimal ignition angle as the input of the solution model, and outputting the optimal torque corresponding to the steady-state working condition by the solution model.
Specifically, for each steady-state working condition, a first condition that the rotating speed, the relative air inflow and the difference value of the test engine corresponding to the steady-state working condition are met, a second condition that the optimal torque is met and a third condition that the optimal ignition angle is met are input into a solver, and the solver outputs the optimal torque corresponding to the steady-state working condition and four optimal ignition angles corresponding to the optimal torque. Wherein the first condition is that the difference is minimal to ensure that the calculated torque and the actual torque are closest. In order to ensure that the calculated optimal torque is simultaneously suitable for different VVT combinations, the calculated torques of the different VVT combinations under each steady-state working condition need to be calculated, in addition, the same VVT combination can contain the optimal ignition angle and also can contain non-optimal ignition angles, in order to ensure that the actual conditions are covered, the embodiment respectively calculates the calculated torques when the optimal ignition angles corresponding to four different VVT combinations are calculated for each steady-state working condition and the calculated torques when the non-optimal ignition angles are corresponding to each VVT combination, the calculated torques under various conditions are respectively differed from the actual torques corresponding to the steady-state working conditions, and the absolute values of the differences are summed to obtain the difference value of the calculated torque and the actual torque under the steady-state working condition. The number of the non-optimal ignition angles corresponding to each VVT combination may be set according to actual needs, and the embodiment is not limited.
The second condition is a range that the magnitude of the optimal torque under each steady-state operating condition satisfies, the ranges set under different steady-state operating conditions may be the same or different, for example, the magnitude of the optimal torque under each steady-state operating condition is between 0 and 100, or may be set in stages, for example, when the rotation speed and the relative intake air amount of the test engine are small, the magnitude of the corresponding optimal torque is between 0 and 50, and when the rotation speed and the relative intake air amount of the test engine are large, the magnitude of the corresponding optimal torque is between 50 and 100, which may be set according to actual needs. The third condition is a range that the optimal ignition angle satisfies, and the present embodiment sets the optimal ignition angle in different VVT combinations to be larger than the actual ignition angle, for example, the corresponding optimal ignition angle when both the intake valve and the exhaust valve are open is larger than the actual ignition angle of the engine when both the intake valve and the exhaust valve are open. The non-optimal firing angle is increased or decreased based on the optimal firing angle.
For example, refer to tables 1 to 5, where table 1 is a first association table, and tables 2 to 5 are respectively corresponding to the optimal ignition angle tables of four VVT combinations, where the optimal torque tables are determined by the solver under different steady-state conditions. The lateral direction of tables 1 to 5 represents the relative intake air amount, the longitudinal direction represents the rotational speed of the test engine, each lattice point inside table 1 represents the optimum torque, and each lattice point of tables 2 to 5 represents the optimum ignition angle. For table 1, the steady-state conditions are preset, and the optimal torque corresponding to each steady-state condition and the optimal ignition angle corresponding to different VVT combinations of the steady-state conditions are calculated according to a solver. Tables 2-5 are also similar. In practical application, the difference values corresponding to the steady-state working conditions and the equal information of the first condition met by the difference values can be simultaneously input into the solver, and the solver simultaneously outputs the optimal torque corresponding to the steady-state working conditions and the optimal ignition angle of the steady-state working conditions under different VVT combinations.
TABLE 1 first association Table
Table 2 optimal ignition angle table for VVT combination 1
TABLE 3 optimal ignition angle TABLE FOR VVT COMBINATION 2
Table 4 optimal ignition angle table for VVT combination 3
Table 5 optimal ignition angle table for VVT combination 4
The VVT combination 1 is an intake valve and an exhaust valve which are fully closed, the VVT combination 2 is an intake valve which is only opened, the VVT combination 3 is an exhaust valve which is only opened, and the VVT combination 4 is an intake valve and an exhaust valve which are fully opened. For example, referring to fig. 3, fig. 3 is a schematic diagram illustrating a deviation between a calculated torque and an actual torque when the same steady-state operating condition corresponds to different ignition angles under four different VVT combinations according to the second embodiment of the present invention. Optionally, in fig. 3, the rotation speed of the test engine is 1000r/min, and the relative intake air amount rl is 120 as an example, it can be seen from fig. 3 that, when the ignition angles corresponding to different VVT combinations are different, the deviation between the calculated torque output by the torque model and the actual torque is different, so that the optimal ignition angle needs to be considered to ensure that the calculated torque output by the torque model is closest to the actual torque. It should be noted that fig. 3 is a schematic diagram of torque deviation corresponding to only a partial ignition angle.
And S250, determining a second correlation table of the optimal torque of the test engine and the corresponding working condition according to the first correlation table to serve as an information correlation table.
The first association table is an association table which takes the steady-state working condition as input and the optimal torque as output, that is, the corresponding optimal torque can be determined only according to the current steady-state working condition of the test engine, for example, when the torque corresponding to the current steady-state working condition needs to be determined, the current steady-state working condition is taken as input, the first association table is searched for, the corresponding optimal torque is obtained, and then the calculated torque is output by the torque model according to the optimal torque and taken as the torque corresponding to the current steady-state working condition.
The second correlation table is an inverse table of the first correlation table, that is, the second correlation table is a correlation table in which one parameter of the optimum torque and the steady-state condition is used as an input and the other parameter of the steady-state condition is used as an output, for example, the first correlation table is a correlation table in which the rotation speed and the relative intake air amount of the test engine are used as inputs and the optimum torque is used as an output, and the second correlation table is a correlation table in which the rotation speed and the optimum torque of the test engine are used as inputs and the relative intake air amount is used as an output. Therefore, when the required torque is determined, the steady-state working condition corresponding to the required torque can be obtained by searching the second association table, and the running parameters of the test engine are adjusted according to the steady-state working condition. When only the required torque is used as input, a plurality of steady-state working conditions can be obtained, and when one parameter is limited at the same time, one steady-state working condition corresponding to the required torque can be obtained.
Optionally, the second association table may be obtained by:
performing inverse operation on the first correlation table, and determining a target working condition corresponding to the test engine under a target torque;
and forming a second correlation table based on the target torque and the corresponding target working condition.
The inverse operation is a way of determining the steady-state working condition corresponding to the optimal torque according to the optimal torque in the first association table, the inverse operation is performed on the first association table, the steady-state working condition corresponding to each optimal torque is determined, and the second association table can be formed according to the optimal torque and the corresponding steady-state working condition. For example, referring to table 6, table 6 is a second correlation table, the horizontal direction of the second correlation table represents the optimal torque, and the vertical direction represents the rotation speed of the test engine, although the vertical direction may also represent the relative intake air amount, which may be determined according to actual conditions. And aiming at the first association table, when a steady-state working condition corresponding to a certain optimal torque in the first association table needs to be determined, the optimal torque is called a target torque, and the steady-state working condition is called a target working condition. It should be noted that tables 1 to 6 are only exemplary to list some data.
TABLE 6 second association table
Optionally, the first correlation table may be inversely operated in the following manner to determine a target operating condition of the test engine corresponding to the target torque:
for each target torque in the first correlation table, determining a first torque and a second torque adjacent to the target torque in the first correlation table;
respectively determining a first steady-state working condition and a second steady-state working condition corresponding to the first torque and the second torque;
and determining a target working condition corresponding to the target torque according to a preset working condition calculation formula and the target torque, the first torque, the second torque, the first steady-state working condition and the second steady-state working condition.
The first torque and the second torque are torques vertically adjacent to the target torque, the optimal torque of the third row and the fifth row in table 1 is taken as the target torque, and the first torque and the second torque are respectively the optimal torque corresponding to the fifth row and the second row and the optimal torque corresponding to the fifth row and the fourth row and the fifth row. The first steady state working condition is a steady state working condition corresponding to the first torque, namely the relative air intake quantity rl is 0.00, and the rotating speed of the test engine is 1200 r/min. The second steady-state working condition is a steady-state working condition corresponding to the second torque, namely the relative air intake quantity rl is 30, and the rotating speed of the test engine is 1200 r/min. After the target torque, the first torque, the second torque, the first steady-state working condition and the second steady-state working condition are determined, the target working condition corresponding to the target torque can be obtained according to a preset working condition calculation formula. Optionally, the working condition calculation formula is:
z(m,n)＝(y(m,1)-Z(a,n))*(Y(a+1,1)-Y(a,1))/(Z(a+1,n)-Z(a,n))+Y(a,1)
wherein Z (m, n) is the relative intake air amount in the mth row and nth column in the second correlation table, i.e. the target condition to be determined, Y (m,1) is the target torque in the mth row and 1 st column in the second correlation table, Z (a, n) is the first torque, Z (a +1, n) is the second torque, Y (a,1) is the first steady-state condition, and Y (a +1,1) is the second steady-state condition. When the operating condition formula is used for calculating the target operating condition, the rotating speed of the test engine is kept unchanged, namely the rotating speed of the test engine corresponding to the nth column is 1200r/min, the operating condition formula calculates that the target torque is y (M,1), and the rotating speed of the test engine is the relative air intake amount corresponding to 1200r/min, wherein a is the number of rows of the target torque in the first association table-1, M is more than or equal to 2 and less than or equal to M, N is more than or equal to 2 and less than or equal to N, M is the total number of rows in the second association table, and N is the total number of columns in the second association table.
Specifically, referring to fig. 4, fig. 4 is a flowchart illustrating an implementation of the second association table according to a second embodiment of the present invention. Firstly, determining the total row number M and the total column number N of a second association table, then initializing M-2 and N-2, determining the position of the target torque and two positions which are vertically adjacent to the position in a first association table according to each target torque in the second association table, respectively using the position as a first torque and a second torque, respectively determining a first relative air intake quantity and a second relative air intake quantity under the rotating speed of the test engine corresponding to the target torque according to the first torque and the second torque, respectively using the first relative air intake quantity and the second relative air intake quantity as a first steady-state working condition and a second steady-state working condition, then substituting the determined target torque, the first torque, the second torque, the first steady-state working condition and the second steady-state working condition into the working condition calculation formula, and determining the relative air intake quantity corresponding to the target torque under the rotating speed of the test engine, wherein the rotating speed of the test engine is the rotating speed of the test engine corresponding to the target torque in the first association table, until the relative intake air amount corresponding to all the torques at various rotating speeds in the second correlation table is calculated.
Illustratively, referring to fig. 5, fig. 5 is a comparison graph of the results output by using different association tables at the same rotation speed according to the second embodiment of the present invention, and it can be seen that when the rotation speed and the relative intake air amount are determined, after the optimal torque obtained by using the first association table and the target torque and rotation speed are determined, the relative intake air amount obtained by using the second association table has a higher coincidence degree of the results. Therefore, the target working condition corresponding to the target torque can be determined through inverse operation, and the driving requirement is met.
The second embodiment of the invention provides a data processing method based on a torque model, on the basis of the first embodiment, the torque model is utilized to determine the optimal torque corresponding to each steady-state working condition to form a first association table, then the first association table is subjected to inverse operation to obtain a second association table, so that after the required torque is determined, the steady-state working condition corresponding to the required torque can be determined by searching the second association table, and further, the operation parameters of the test engine are adjusted according to the parameters corresponding to the steady-state working condition, so that the test engine outputs the required torque to meet the driving requirement, manual calculation is not needed, the time is saved, and the labor is also saved.
EXAMPLE III
Fig. 6 is a structural diagram of a data processing apparatus based on a torque model according to a third embodiment of the present invention, which can execute the data processing method based on the torque model according to the third embodiment of the present invention, specifically, the apparatus includes:
the information acquisition module 310 is configured to acquire measurement data of a test engine in a bench test under at least one steady-state working condition, where the measurement data includes an actual torque output by the test engine and an actual ignition angle corresponding to the actual torque;
the calculation torque determining module 320 is configured to determine, according to a preset torque model, a calculation torque output by the torque model under each steady-state operating condition;
and the information association table determining module 330 is configured to determine an optimal torque of the test engine and an information association table of a corresponding working condition according to the calculated torque and the actual torque and in combination with a preset rule, so that when a vehicle matched with the test engine actually runs, an operation parameter of the test engine under the current required torque is determined according to the information association table.
The third embodiment of the invention provides a data processing device based on a torque model, which is characterized in that measurement data of a test engine under at least one steady-state working condition in a bench test are obtained, a calculated torque output by the torque model under each steady-state working condition is determined according to a preset torque model, an optimal torque of the test engine and an information association table of the corresponding working condition are determined according to the calculated torque and an actual torque and a preset rule, so that when a vehicle matched with the test engine actually runs, an operation parameter of the test engine under the current required torque is determined according to the information association table. Compared with the prior art, the embodiment of the invention utilizes the measured data of the test engine under different steady-state working conditions, and combines the torque model to obtain the information association table of the torque and the working conditions, thereby providing a basis for the form of a vehicle subsequently provided with the test engine, meeting the driving requirement, avoiding manual execution in the process, realizing the automatic processing of the data and shortening the processing time.
On the basis of the above embodiment, the calculation torque determination module 320 includes:
and the calculation torque determining unit is used for determining the calculation torque of the test engine under each steady-state working condition according to the calculation formula of the torque model, and the optimal torque, the ignition efficiency, the air-fuel ratio efficiency and the friction torque corresponding to the optimal ignition angle of the test engine under each steady-state working condition.
On the basis of the above embodiment, the calculation formula of the torque model is as follows:
p(i,j)＝(x(i,j)*y(i,j)*ω(i,j)-β(i,j))*α(i,j)*λ
wherein p (i, j) is a calculated torque of the test engine under the (i, j) th steady-state working condition, x (i, j) is an optimal torque under the (i, j) th steady-state working condition, y (i, j) is an ignition efficiency corresponding to the optimal ignition angle under the (i, j) th steady-state working condition, ω (i, j) is an air-fuel ratio efficiency under the (i, j) th steady-state working condition, β (i, j) is a friction torque under the (i, j) th steady-state working condition, α (i, j) is an engine coefficient under the (i, j) th steady-state working condition, and λ is a weight coefficient between 0 and 1.
On the basis of the above embodiment, the information association table determining module 330 includes:
a difference determining unit, configured to determine a difference between the calculated torque and the actual torque under each of the steady-state operating conditions, respectively;
the optimal torque determining unit is used for determining optimal torque corresponding to each steady-state working condition according to each difference value, the steady-state working condition corresponding to each difference value and a preset solving model, and forming a first association table based on each steady-state working condition and the optimal torque corresponding to each steady-state working condition;
and the information association table determining unit is used for determining a second association table of the optimal torque of the test engine and the corresponding working condition according to the first association table to serve as the information association table.
On the basis of the above embodiment, the optimal torque determination unit is specifically configured to:
and aiming at each steady-state working condition, taking the steady-state working condition, the difference value corresponding to the steady-state working condition, the first condition met by the difference value, the second condition met by the optimal torque under the steady-state working condition and the third condition met by the optimal ignition angle as the input of the solution model, and outputting the optimal torque corresponding to the steady-state working condition by the solution model.
On the basis of the above embodiment, the information association table determining unit includes:
the target working condition determining subunit is used for performing inverse operation on the first association table and determining a target working condition corresponding to the test engine under the target torque;
and the second association table forming subunit is used for forming a second association table based on the target torque and the corresponding target working condition.
On the basis of the foregoing embodiment, the target operating condition determining subunit is specifically configured to:
for each target torque in the first correlation table, determining a first torque and a second torque adjacent to the target torque in the first correlation table;
respectively determining a first steady-state working condition and a second steady-state working condition corresponding to the first torque and the second torque;
and determining a target working condition corresponding to the target torque according to a preset working condition calculation formula and the target torque, the first torque, the second torque, the first steady-state working condition and the second steady-state working condition.
The data processing device based on the torque model provided by the third embodiment of the invention can execute the data processing method based on the torque model in the third embodiment, and has corresponding functions and beneficial effects.
Example four
Fig. 7 is a structural view of a stand according to a fourth embodiment of the present invention, and referring to fig. 7, the stand includes: the test bench comprises an engine controller 410, a test engine 420, a memory 430, an input device 440, an output device 450, a dynamometer 460 and a bench body 470, wherein the engine controller 410, the test engine 420, the memory 430, the input device 440, the output device 450 and the dynamometer 460 are arranged on the bench body 470, the test engine 420 is used for providing measurement data under different steady-state conditions for the bench test, and the dynamometer 460 is used for measuring friction torque of the test engine 420. The engine controller 410, engine 420, memory 430, input device 440, output device 450, and dynamometer 460 in the skid may be connected by a bus or otherwise, as exemplified by the bus connection in FIG. 7.
The memory 430 is a computer-readable storage medium that can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the torque model-based data processing method in the embodiments of the present invention. The engine controller 410 executes various functional applications of the gantry and data processing, i.e., implements the torque model-based data processing method of the above-described embodiment, by executing software programs, instructions, and modules stored in the memory 430.
The memory 430 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 430 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 430 may further include memory located remotely from the engine controller 410, which may be connected to the gantry via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 440 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the gantry. The output device 450 may include a display device such as a display screen, and an audio device such as a speaker and a buzzer.
The rack provided by the fourth embodiment of the present invention is the same as the data processing method based on the torque model provided by the foregoing embodiments, and the details of the technology that are not described in detail in the present embodiment can be referred to the foregoing embodiments, and the present embodiment has the same advantageous effects as the data processing method based on the torque model.
EXAMPLE five
Fifth embodiment of the present invention also provides a storage medium having stored thereon a computer program that, when executed by an engine controller, implements a data processing method based on a torque model according to the fifth embodiment of the present invention.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the operations in the data processing method based on the torque model described above, and may also perform the related operations in the data processing method based on the torque model provided by any embodiments of the present invention, and has corresponding functions and advantages.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a robot, a personal computer, a server, or a network device) to execute the data processing method based on the torque model according to the embodiments of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method of data processing based on a torque model, comprising:
the method comprises the steps that measurement data of a test engine under at least one steady-state working condition in a bench test are obtained, wherein the measurement data comprise an actual torque output by the test engine and an actual ignition angle corresponding to the actual torque;
determining the calculated torque output by the torque model under each steady-state working condition according to a preset torque model;
and determining an optimal torque of the test engine and an information association table of the corresponding working condition by combining a preset rule according to the calculated torque and the actual torque, so that when a vehicle matched with the test engine actually runs, determining the operating parameters of the test engine under the current required torque according to the information association table.
2. The method of claim 1, wherein determining the calculated torque output by the torque model at each steady state condition based on a predetermined torque model comprises:
and determining the calculated torque of the test engine under each steady-state working condition according to the calculation formula of the torque model, the optimal torque corresponding to each steady-state working condition of the test engine, the ignition efficiency corresponding to the optimal ignition angle, the air-fuel ratio efficiency and the friction torque.
3. The method of claim 2, wherein the torque model is calculated by the formula:
p(i,j)＝(x(i,j)*y(i,j)*ω(i,j)-β(i,j))*α(i,j)*λ
wherein p (i, j) is a calculated torque of the test engine under the (i, j) th steady-state working condition, x (i, j) is an optimal torque under the (i, j) th steady-state working condition, y (i, j) is an ignition efficiency corresponding to the optimal ignition angle under the (i, j) th steady-state working condition, ω (i, j) is an air-fuel ratio efficiency under the (i, j) th steady-state working condition, β (i, j) is a friction torque under the (i, j) th steady-state working condition, α (i, j) is an engine coefficient under the (i, j) th steady-state working condition, and λ is a weight coefficient between 0 and 1.
4. The method according to claim 3, wherein the step of determining the optimal torque of the test engine and the information association table of the corresponding working conditions according to the calculated torque and the actual torque and by combining a preset rule comprises the following steps:
respectively determining the difference value of the calculated torque and the actual torque under each steady-state working condition;
determining the optimal torque corresponding to each steady-state working condition according to each difference value, the steady-state working condition corresponding to each difference value and a preset solving model, and forming a first association table based on each steady-state working condition and the optimal torque corresponding to each steady-state working condition;
and determining a second association table of the optimal torque of the test engine and the corresponding working condition according to the first association table to serve as an information association table.
5. The method of claim 4, wherein determining the optimal torque corresponding to each of the steady-state operating conditions according to each of the differences, the steady-state operating condition corresponding to each of the differences, and a preset solution model comprises:
and aiming at each steady-state working condition, taking the steady-state working condition, the difference value corresponding to the steady-state working condition, the first condition met by the difference value, the second condition met by the optimal torque under the steady-state working condition and the third condition met by the optimal ignition angle as the input of the solution model, and outputting the optimal torque corresponding to the steady-state working condition by the solution model.
6. The method of claim 4, wherein determining a second correlation table of torque and corresponding operating conditions for the test engine based on the first correlation table comprises:
performing inverse operation on the first correlation table, and determining a target working condition corresponding to the test engine under a target torque;
and forming a second correlation table based on the target torque and the corresponding target working condition.
7. The method of claim 6, wherein said inverting said first correlation table to determine a target operating condition for said test engine at a target torque comprises:
for each target torque in the first correlation table, determining a first torque and a second torque adjacent to the target torque in the first correlation table;
respectively determining a first steady-state working condition and a second steady-state working condition corresponding to the first torque and the second torque;
and determining a target working condition corresponding to the target torque according to a preset working condition calculation formula and the target torque, the first torque, the second torque, the first steady-state working condition and the second steady-state working condition.
8. A data processing apparatus based on a torque model, comprising:
the system comprises an information acquisition module, a data acquisition module and a data processing module, wherein the information acquisition module is used for acquiring measurement data of a test engine under at least one steady-state working condition in a bench test, and the measurement data comprises an actual torque output by the test engine and an actual ignition angle corresponding to the actual torque;
the calculation torque determining module is used for determining the calculation torque output by the torque model under each steady-state working condition according to a preset torque model;
and the information association table determining module is used for determining the optimal torque of the test engine and the information association table of the corresponding working condition by combining a preset rule according to the calculated torque and the actual torque so as to determine the operating parameters of the test engine under the current required torque according to the information association table when a vehicle matched with the test engine actually runs.
9. A gantry, comprising:
a rack body;
an engine controller;
the test engine is used for providing measurement data under different steady-state working conditions for the bench test;
a dynamometer for measuring a friction torque of the test engine;
a memory for storing one or more programs;
the one or more programs, when executed by the engine controller, cause the engine controller to implement the torque model-based data processing method of any one of claims 1-7.
10. A storage medium on which a computer program is stored, characterized in that the program, when executed by an engine controller, implements a torque model-based data processing method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706413.4A CN110806317B (en) | 2019-08-01 | 2019-08-01 | Data processing method and device based on torque model, rack and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706413.4A CN110806317B (en) | 2019-08-01 | 2019-08-01 | Data processing method and device based on torque model, rack and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110806317A true CN110806317A (en) | 2020-02-18 |
| CN110806317B CN110806317B (en) | 2021-09-17 |
Family
ID=69487408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910706413.4A Active CN110806317B (en) | 2019-08-01 | 2019-08-01 | Data processing method and device based on torque model, rack and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110806317B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608774A (en) * | 2020-04-09 | 2020-09-01 | 东风汽车集团有限公司 | Method for accelerating ignition process of catalytic converter by utilizing ignition efficiency of engine |
| CN111896264A (en) * | 2020-07-28 | 2020-11-06 | 上海元城汽车技术有限公司 | Method and device for generating test working condition of range extender engine and electronic equipment |
| CN113153543A (en) * | 2021-03-18 | 2021-07-23 | 联合汽车电子有限公司 | Air intake load model correction method and vehicle |
| CN114576024A (en) * | 2020-11-30 | 2022-06-03 | 长城汽车股份有限公司 | Engine torque model correction method, vehicle control method and corresponding vehicle |
| CN114738126A (en) * | 2022-03-30 | 2022-07-12 | 东风汽车集团股份有限公司 | Target intake density control method, device, equipment and readable storage medium |
| CN115013523A (en) * | 2022-07-08 | 2022-09-06 | 北京汽车集团越野车有限公司 | Control method and system for improving plateau gear shifting torque precision and vehicle |
| CN115508101A (en) * | 2022-04-29 | 2022-12-23 | 东风汽车集团股份有限公司 | Virtual and physical combined passenger car high-temperature dynamic performance correction method and system |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691288A (en) * | 1985-03-18 | 1987-09-01 | United Technologies Corporation | Torque sensor for internal-combustion engine |
| US20050115542A1 (en) * | 2001-10-08 | 2005-06-02 | Patrick Hochstrasser | Method and device for controlling an internal combustion engine |
| US7623955B1 (en) * | 2008-04-30 | 2009-11-24 | Delphi Technologies, Inc. | Method for estimation of indicated mean effective pressure for individual cylinders from crankshaft acceleration |
| DE102009024544A1 (en) * | 2009-06-08 | 2010-12-30 | Fev Motorentechnik Gmbh | Method for automated data input for controller of vehicle for improving moment prediction of vehicle drive, involves using data input to build characteristic for parameters concerning ignition angle |
| CN101990596A (en) * | 2008-04-11 | 2011-03-23 | 罗伯特.博世有限公司 | Adaption of a stationary maximum torque of an internal combustion engine |
| CN102620939A (en) * | 2012-04-10 | 2012-08-01 | 潍柴动力股份有限公司 | Engine torque predicting method and engine torque predicting device |
| CN102975624A (en) * | 2012-11-01 | 2013-03-20 | 联合汽车电子有限公司 | Travel-increasing control system of travel-increasing type electric automobile |
| DE102012012341A1 (en) * | 2012-06-21 | 2013-12-24 | Daimler Ag | Method for operating unit of petrol engine of motor car, involves calculating computed torque function as combustion parameter in combustion chamber by using computing device based upon program stored in computing device model |
| US20150040865A1 (en) * | 2013-08-08 | 2015-02-12 | Robert Bosch Gmbh | Method and device for operating engine systems having an internal combustion engine during mode switching |
| CN104408271A (en) * | 2014-12-20 | 2015-03-11 | 吉林大学 | Model-based gasoline engine calibration method |
| CN106224109A (en) * | 2016-07-21 | 2016-12-14 | 南京世博电控技术有限公司 | A kind of entire car controller based on torque model |
| CN106285980A (en) * | 2016-08-15 | 2017-01-04 | 潍柴西港新能源动力有限公司 | A kind of natural gas engine moment of torsion closed loop response method |
| CN106679862A (en) * | 2016-12-30 | 2017-05-17 | 潍柴动力股份有限公司 | Engine actual output torque measuring method and system |
| CN107101832A (en) * | 2016-02-19 | 2017-08-29 | 宝沃汽车（中国）有限公司 | The work information acquisition methods and device of engine development experiment |
| CN109747632A (en) * | 2018-12-29 | 2019-05-14 | 中国第一汽车股份有限公司 | A kind of dual power source driving vehicle torque distribution method |
-
2019
- 2019-08-01 CN CN201910706413.4A patent/CN110806317B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691288A (en) * | 1985-03-18 | 1987-09-01 | United Technologies Corporation | Torque sensor for internal-combustion engine |
| US20050115542A1 (en) * | 2001-10-08 | 2005-06-02 | Patrick Hochstrasser | Method and device for controlling an internal combustion engine |
| CN101990596A (en) * | 2008-04-11 | 2011-03-23 | 罗伯特.博世有限公司 | Adaption of a stationary maximum torque of an internal combustion engine |
| US7623955B1 (en) * | 2008-04-30 | 2009-11-24 | Delphi Technologies, Inc. | Method for estimation of indicated mean effective pressure for individual cylinders from crankshaft acceleration |
| DE102009024544A1 (en) * | 2009-06-08 | 2010-12-30 | Fev Motorentechnik Gmbh | Method for automated data input for controller of vehicle for improving moment prediction of vehicle drive, involves using data input to build characteristic for parameters concerning ignition angle |
| CN102620939A (en) * | 2012-04-10 | 2012-08-01 | 潍柴动力股份有限公司 | Engine torque predicting method and engine torque predicting device |
| DE102012012341A1 (en) * | 2012-06-21 | 2013-12-24 | Daimler Ag | Method for operating unit of petrol engine of motor car, involves calculating computed torque function as combustion parameter in combustion chamber by using computing device based upon program stored in computing device model |
| CN102975624A (en) * | 2012-11-01 | 2013-03-20 | 联合汽车电子有限公司 | Travel-increasing control system of travel-increasing type electric automobile |
| US20150040865A1 (en) * | 2013-08-08 | 2015-02-12 | Robert Bosch Gmbh | Method and device for operating engine systems having an internal combustion engine during mode switching |
| CN104408271A (en) * | 2014-12-20 | 2015-03-11 | 吉林大学 | Model-based gasoline engine calibration method |
| CN107101832A (en) * | 2016-02-19 | 2017-08-29 | 宝沃汽车（中国）有限公司 | The work information acquisition methods and device of engine development experiment |
| CN106224109A (en) * | 2016-07-21 | 2016-12-14 | 南京世博电控技术有限公司 | A kind of entire car controller based on torque model |
| CN106285980A (en) * | 2016-08-15 | 2017-01-04 | 潍柴西港新能源动力有限公司 | A kind of natural gas engine moment of torsion closed loop response method |
| CN106679862A (en) * | 2016-12-30 | 2017-05-17 | 潍柴动力股份有限公司 | Engine actual output torque measuring method and system |
| CN109747632A (en) * | 2018-12-29 | 2019-05-14 | 中国第一汽车股份有限公司 | A kind of dual power source driving vehicle torque distribution method |
Non-Patent Citations (4)
| Title |
|---|
| MICHAEL LIVSHIZ, MINGHUI KAO AND ANTHONY WILL: "Validation and Calibration Process of Powertrain Model for Engine Torque Control Development", 《SAE INTERNATIONAL 2004 SAE WORLD CONGRESS》 * |
| 张凡武: "基于扭矩的汽油机控制模型开发及验证", 《汽车科技》 * |
| 张晟恺: "基于扭矩的CNG发动机管理系统分析与点火控制研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 赵弘志: "汽油机动力总成系统匹配标定及优化研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608774A (en) * | 2020-04-09 | 2020-09-01 | 东风汽车集团有限公司 | Method for accelerating ignition process of catalytic converter by utilizing ignition efficiency of engine |
| CN111608774B (en) * | 2020-04-09 | 2021-12-17 | 东风汽车集团有限公司 | Method for accelerating ignition process of catalytic converter by utilizing ignition efficiency of engine |
| CN111896264A (en) * | 2020-07-28 | 2020-11-06 | 上海元城汽车技术有限公司 | Method and device for generating test working condition of range extender engine and electronic equipment |
| CN111896264B (en) * | 2020-07-28 | 2023-02-24 | 上海元城汽车技术有限公司 | Method and device for generating test working condition of range extender engine and electronic equipment |
| CN114576024A (en) * | 2020-11-30 | 2022-06-03 | 长城汽车股份有限公司 | Engine torque model correction method, vehicle control method and corresponding vehicle |
| CN113153543A (en) * | 2021-03-18 | 2021-07-23 | 联合汽车电子有限公司 | Air intake load model correction method and vehicle |
| CN113153543B (en) * | 2021-03-18 | 2023-01-03 | 联合汽车电子有限公司 | Air intake load model correction method and vehicle |
| CN114738126A (en) * | 2022-03-30 | 2022-07-12 | 东风汽车集团股份有限公司 | Target intake density control method, device, equipment and readable storage medium |
| CN115508101A (en) * | 2022-04-29 | 2022-12-23 | 东风汽车集团股份有限公司 | Virtual and physical combined passenger car high-temperature dynamic performance correction method and system |
| CN115013523A (en) * | 2022-07-08 | 2022-09-06 | 北京汽车集团越野车有限公司 | Control method and system for improving plateau gear shifting torque precision and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110806317B (en) | 2021-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110806317B (en) | Data processing method and device based on torque model, rack and storage medium | |
| CN100588834C (en) | Ignition timing control system for internal combustion engine | |
| DE102017214563B4 (en) | METHOD AND DEVICE FOR CONTROLLING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE | |
| US20120191276A1 (en) | Watercraft throttle control systems and methods | |
| JP4924693B2 (en) | Engine control device | |
| EP1750183A8 (en) | Controller | |
| JP2011094588A (en) | Engine control device | |
| US8781710B2 (en) | Compression ratio determination and control systems and methods | |
| US9885300B2 (en) | Method and system for controlling engine using combustion pressure sensor | |
| CN107461270A (en) | Method and apparatus for running internal combustion engine | |
| JP5691910B2 (en) | Engine control device | |
| CN109882300B (en) | Method and device for correcting inflation efficiency | |
| JP5482718B2 (en) | Engine compatible equipment | |
| US10190519B2 (en) | Control device for internal combustion engine | |
| US20150159618A1 (en) | Ignition timing control device for an internal combustion engine | |
| DE102017222593A1 (en) | Method and control device for determining a target intake manifold pressure of an internal combustion engine | |
| JP5257479B2 (en) | Engine control device | |
| US20160363061A1 (en) | Control Systems and Methods for Reducing Vibration in Internal Combustion Engines | |
| CN108661816B (en) | Electric control injection control method for high-pressure common-rail diesel engine | |
| JP4804413B2 (en) | Fuel control device for internal combustion engine | |
| EP3669060B1 (en) | A method of controlling combustion of fuel in a multi-cylinder internal combustion engine and a computer control system configured to control combustion process in a multi-cylinder internal combustion piston engine | |
| JP2005337186A (en) | Controller for internal combustion engine | |
| EP3385526A1 (en) | A control device for an internal combustion engine | |
| CN110608105B (en) | Automatic calibration method and device for inflation efficiency | |
| JP2009121240A (en) | Air-fuel ratio control method of engine and air-fuel ratio control apparatus for the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |